186 Bibliography. 



of Ferns, with observations on the affinities of each genus." The lat- 

 ter is continued in the numbers for July, August, and September ; com- 

 prising five of the seven tribes into which the Ferns of the first divis- 

 ion, or PoIypodiacecB, (those with a vertical elastic ring to the spo- 

 rangia,) are divided. The work exhibhs infinitely more care and 

 consideration than Presl's Tentamen PteridograpMcz ; although some 

 genera appear to be founded upon very slight technical distinctions. 

 The first tribe, PolypodiecE., is represented in the United States by 

 Polypodium, Struthiopteris, AUosorus, (A. gracilis, J. Stn. = Pteris 

 gracilis, Michx.) NotholcBna, (N. vestita, J. S»z. = Cheilanthes vestita, 

 &c.) Tceniopsis, (T. lineata = Vittaria lineata, Swartz.,) ; 2d. Acrosti- 

 cJiecE, by a single Acrostichum ; 3d. Pteridece, by Pteris, Doodia, 

 (Woodwardia Virginica, Sivartz,) and Wo o dw ar dia, (W. onocleioides- 

 and W. thelypterioides, Pursh ; but is the latter different from Doodia 

 Virginica?); the 4th. Aspleniece, hy Scolopendrium, Asplenium, (of 

 which Athyrium is considered a section,) and Antigramma, (Aspleni- 

 um rhizophyllum, Linn.,) but why was not the prior name of Campto- 

 sorus retained for the genus .? The 5th tribe, Aspidiece, includes Ono- 

 clca, [for the confirmation of Mr. Smith's conjecture respecting the 

 Rhagiopteris of PresPs Tent. Pterid. see notice of the latter work in 

 a former number of this Journal,] Woodsia, Cystopteris,^{C. fragilis 

 and C. bulbifera,) Lastrea (= Nephrodium marginale, Michx., N. Gol- 

 dianum. Hook. ^ Gi~ev., N. Noveboracense, dilatatum, &c.,) and Polys- 

 tichum, (Aspidium (Nephrodium, Michx.,) acrostichoides and A. acu- 

 leatum.) It is but just that the name of Nephrodium, established by 

 Michaux, should be employed, if employed at all, for some of the 

 species originally comprised in that genus ; this name should therefore 

 have been retained for either Polystichum or Lastrea, if the two last 

 are really distinct genera. The October number is nearly filled with 

 a biographical sketch of the late Allan Cunningham, the botanical col- 

 lector. It also contains an announcement of the death of Professor 

 De Candolle, which mournful event took place, at Geneva on the 9th 

 of September last. 



6. The Annals and Magazine of Natural History, (London : con- 

 ducted by Sir W. Jardine, Mr. Selby, Dr. Johnston, Prof. Don, and 

 Mr. Taylor,) for July last, contains an elaborate paper by Mr. Schom- 

 burgk, on the Urari or Arroyo 2)oison of the Indians of Guiana, the 

 Wouraly of ' Waterton's Wanderings,' with a description of the plant 

 from which it is extracted. Mr. Schomburgk appears to be the first 

 European who has seen the plant, (for neither Baron Humboldt nor Mr. 

 Waterton met with it,) and gathered specimens : from the latter the 

 plant has recently been figured in the eighth part of Hooker's Icones 

 Plantarum. 



